婷婷人人爽人人爽人人片,蜜桃臀AV高潮无码,妺妺窝人体色777777仙人掌,在线观看高清黄网站免费

  • 首頁(yè)
  •  
  • 產(chǎn)品
  •  
  • 供應(yīng)硅元件
 
供應(yīng)硅元件

  • 硅材料

    Silicon( Si) is a good IR material , it can be used from 1.2 to 7 microns, its peak transmission range is in 3-5 micron. Silicon can be used in some circumstances where weight is a concern as that t..

  • 硅窗片

    Silicon(Si) Windows are made from Silicon material, which has transparent range from 1.2 to 7 microns MT-Optics,Inc. can kindly process this Si as windows, mirrors, lenses etc. Specifications: Mater..

  • 硅平凸透鏡

    Silicon (Si) Plano convex Lenses are made from Germanium material. They present a curvecd interface and a planar interface. They have a positive focal length, which makes it ideal for collecting and f..

  • 硅平凹透鏡

    Silicon (Si) Plano concave Lenses are made from Silicon material. They present a concave surface and a plano surface. They have a negative focal length and are used for image reductinon or to spread l..

< Previous1Next >

 
好爽又高潮了毛片免费下载| 伊人久久大香线蕉亚洲五月天 | 337P亚洲日本中国大胆69| 人妻少妇精品久久| 午夜精品久久久久久| 国产成人无码AV在线播放不卡|